I have an avi video clip and I need to be able to blur particulare areas within individual frames, but not the whole frame. The only software I have found with a trial version is FadeToBlack. However, this seems to blur the entire frame. Does anyone know of software that will allow me to blur a particular portion of a frame and comes with a free trial version?

If this post is not in the right forum, then I apologize. I am new to the website and video editing world.